摘要:
The invention describes a machine (10) for producing bags of flexible material, comprising a reel-holder group (12) that removably supports at least one reel (14, 16) capable of supplying at least one said flexible material, a welding group (18) provided with at least one upper welding plate (20) and at least one corresponding lower welding plate (22) that are heated and provided with corresponding linear welding tracks, such upper (20) and lower (22) welding plates acting on the film according to a vertical alternate movement, and at least one cutting group (24, 26) that separates from each other the single bags that have just been obtained further to the welding operation on the film. The lower welding plate (22) is made integral with a base (30), whereas the upper welding plate (20) is mobile with an alternate motion along a plurality of vertical guiding columns (32).
摘要:
A system for applying ultrasonic energy to a workpiece, the system including a horn stack; a mounting system upon which the horn stack is mounted; a source of energy coupled to the horn stack; an anvil having a surface for supporting the workpiece; and a controller configured to receive a resonant frequency of the horn stack, and to determine a quantity standing in known relation to a change in gap between the horn stack and the anvil.
摘要:
The invention relates to a method for mounting and alignment of an electro-optical apparatus, in which an optic (42) is oriented in three axes (X;Y;Z) relative to a further component (26, 46), in particular a method for alignment of a receiving optic (42) relative to an optical receiver (46). The invention proposes that the optic (42) is first aligned in a first (X) and a second direction (Y) and the optic (42) is subsequently fixed to an optical carrier (40) in the third direction (Z) by means of a welding process. The invention furthermore relates to a measuring device, in particular a distance measuring device (10), aligned according to the method of the invention.
摘要:
An ultrasonic rotary welding apparatus and methods of using the same are disclosed. The ultrasonic welding device includes an ultrasonic horn and an anvil. The ultrasonic horn is constrained by a mounting system. The mounting system permits the horn to exhibit two degrees of freedom. The first degree of freedom permits translational motion in a direct perpendicular to the longitudinal axis of the horn. The second degree of freedom permits rotation about an axis perpendicular to both the longitudinal axis of the horn and the direction of translational motion.
摘要:
Transverse cuts are made in a web using a cutter/anvil combination which is subjected to high frequency vibration, preferable ultrasound. In one arrangement, particularly for cutting tea bag webs, a rotary cutter drum (4) cooperates with an ultrasonically-vibrated anvil 12. The web may be simultaneously sealed and cut by means of a modified drum (202) having sealer/cutter elements (208, 210). In other arrangements, particularly for cutting cork paper on a machine for assembling filter cigarettes, the paper is severed on a drum (106, 122, 192, 350) cooperating with an ultrasonically-vibrated anvil (110, 194, 312) or directly on an ultrasonically-vibrated drum (144, 160, 170, 180).
摘要:
APPARATUS FOR TESTING HEAT SEALING CONDITIONS BETWEEN SHEET MATERIALS HAS A PAIR OF CO-OPERATING HEAT SEALING ELEMENTS ROTATABLY MOUNTED ABOUT SEPARATE RELATIVELY RADIALLY DISPLACEABLE AXES. THE TEMPERATURE OF THE ELEMENTS CAN BE VARIED, AND VARIABLE SPEED DRIVE MEANS ALLOWS THE DWELL TIME TO BE VARIED. THE LOADING CAN BE VARIED BY ADJUSTABLE STOP MEANS WHICH LIMITS THE MAXIMUM DISPLACEMENT OF THE AXES. ALTERNATIVELY OR ADDITIONALLY VARIABLE MEANS CAN BE PROVIDED FOR APPLYING A FORCE TENDING TO URGE THE AXES TOGETHER. THERE MAY ALSO BE ADJUSTABLE STOP MEANS FOR PROVIDING A MINIMUM LIMIT TO THE RADIAL DISTANCE BETWEEN THE AXES.
摘要:
A dual ultrasonic welder unit may be coupled to and carried by a mounting bracket including a base member extending in a an end of a robot arm and may include a first welder including a welding horn adjustable in a Z-axis direction by a first motor mounted within a mounting bar assembly of the first welder. The mounting bar assembly may be coupled to the base member and include a support for adjusting the location of the first welder in an X-axis direction by a second motor mounted to an extension member coupled to the base member and including a threaded member coupled to a follower member coupled to the mounting bar assembly. The dual ultrasonic welder may include a second ultrasonic welder fixedly coupled to the base member. Methods of controlling and operating the dual ultrasonic welding unit include steps of operating the robot and the first and second motors to position the first welder relative to the second welder unit for simultaneously performing ultrasonic welds on at multiple locations on a workpiece.
摘要:
Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.
摘要:
The invention relates to a device for detecting defects during sealing of a package comprising a foil. The invention also relates to a method for detecting defects during sealing of a package comprising a foil, particularly by making use of the device according to the invention.
摘要:
In an apparatus and a method for welding of workpiece layers, a feed device is activated with a predefined adjustment force without ultrasound activation and the sonotrode is advanced in the direction of an anvil. The adjustment force is subsequently reduced and the sonotrode is activated. The sonotrode can subsequently be deactivated and the adjustment force can be increased on the basis of a deactivation signal.